Double-chirping of the waveguide grating router

Although chirping only the arm lengths of the waveguide grating router allows each input-output port combination to have a dominant passband in one grating order with the peak transmissivities in other orders suppressed, all but one of the dominant passbands necessarily have reduced peak transmissiv...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 9; no. 6; pp. 776 - 778
Main Authors Doerr, C.R., Joyner, C.H.
Format Journal Article
LanguageEnglish
Published IEEE 01.06.1997
Subjects
Arrayed waveguide gratings
Chirp
Couplers
Laser stability
Optical waveguides
Passband
Propagation constant
Semiconductor lasers
Semiconductor waveguides
Waveguide lasers
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Summary:Although chirping only the arm lengths of the waveguide grating router allows each input-output port combination to have a dominant passband in one grating order with the peak transmissivities in other orders suppressed, all but one of the dominant passbands necessarily have reduced peak transmissivities and increased widths, and the extraneous grating order passband suppression is limited. We show here that simultaneously chirping both the arm lengths and the angular distribution of the arms in one of the star couplers eliminates these deficiencies.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/68.584987